Android™

Test for an IMAP Server Capability

Demonstrates the Chilkat Imap.HasCapability method, which tests whether a named capability appears in a raw capability response. The second argument is typically the string returned by the Capability method. This example checks whether the server supports the IDLE extension.

Background: Rather than scanning the raw CAPABILITY text yourself, HasCapability parses it for a specific token. This is the right guard before using any optional feature — for example, only entering an IDLE wait loop, or using the MOVE command, when the server actually advertises it. Fetch the capability string once and test it as many times as needed.

Chilkat Android™ Downloads

Download Chilkat for Android™

Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    //  Demonstrates the Imap.HasCapability method, which tests whether a named capability appears
    //  in a raw capability response.  The 2nd argument is typically the string returned by the
    //  Capability method.

    CkImap imap = new CkImap();

    imap.put_Ssl(true);
    imap.put_Port(993);

    success = imap.Connect("imap.example.com");
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    //  Get the raw capability response.
    String capabilities = imap.capability();
    if (imap.get_LastMethodSuccess() == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }

    //  Test whether the server supports the IDLE extension.
    boolean hasIdle = imap.HasCapability("IDLE",capabilities);
    if (hasIdle == true) {
        Log.i(TAG, "The server supports IDLE.");
        }
    else {
        Log.i(TAG, "The server does not support IDLE.");
        }

    success = imap.Disconnect();
    if (success == false) {
        Log.i(TAG, imap.lastErrorText());
        return;
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}